U.S. patent application number 16/922340 was filed with the patent office on 2021-01-14 for fitted bolt connection.
The applicant listed for this patent is Ellergon Antriebstechnik Gesellschaft m.b.H.. Invention is credited to Matthias Geislinger.
Application Number | 20210010497 16/922340 |
Document ID | / |
Family ID | 1000004969381 |
Filed Date | 2021-01-14 |
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United States Patent
Application |
20210010497 |
Kind Code |
A1 |
Geislinger; Matthias |
January 14, 2021 |
FITTED BOLT CONNECTION
Abstract
A fitted bolt connection is provided for connecting at least two
components to holes to be matched comprises a fitted bolt having a
conical surface for arrangement in a hole in the first component,
three or more separate cone segments each for arrangement between
the conical surface of the fitted bolt and an inner peripheral wall
of the hole in the first component, and clamping bolts each
associated with the cone segments, by means of which the cone
segments, independently of one another, can each be individually
clamped between the conical surface of the fitted bolt and the
inner peripheral wall of the hole.
Inventors: |
Geislinger; Matthias;
(Hallwang, AT) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ellergon Antriebstechnik Gesellschaft m.b.H. |
Hallwang |
|
AT |
|
|
Family ID: |
1000004969381 |
Appl. No.: |
16/922340 |
Filed: |
July 7, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F16B 37/145 20130101;
F16B 5/025 20130101 |
International
Class: |
F16B 5/02 20060101
F16B005/02; F16B 37/14 20060101 F16B037/14 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 8, 2019 |
DE |
10 2019 118 453.3 |
Claims
1. A fitted bolt connection comprising: a fitted bolt having a
conical surface for arrangement in a hole in a first component,
three or more separate cone segments each for arrangement between
the conical surface of the fitted bolt and an inner peripheral wall
of the hole in the first component, and clamping bolts each engaged
with one of the cone segments, respectively, for individually
clamping the cone segments between the conical surface of the
fitted bolt and the inner peripheral wall of the hole independently
of one another.
2. The fitted bolt connection of claim 1 further comprising a cap
for axial support on the first component, which cap engages with
the fitted bolt by means of a thread and has a tool attachment for
screwing the cap against the fitted bolt, wherein the clamping
bolts for the cone segments are each rotatably received by an end
portion on the cap and axially fixed on the cap by said
portion.
3. The fitted bolt connection of claim 2, wherein an inside
projection having an external thread is provided on the cap, which
projection engages with a recess having an internal thread on the
fitted bolt.
4. The fitted bolt connection of claim 1, wherein the clamping
bolts for the cone segments have a head having a tool attachment on
the outside of the cap and a collar on the inside of the cap, the
diameter of the head and/or collar being larger than the diameter
of an associated hole on the cap.
5. The fitted bolt connection of claim 2, wherein the fitted bolt
has a second conical surface for arrangement in a hole of a second
component, which second conical surface has a set angle opposing
the first conical surface and relative to the longitudinal axis of
the fitted bolt, wherein second cone segments are arranged between
the second conical surface and an inner peripheral wall of the
second hole by means of second clamping bolts, and wherein a second
cover corresponding to the first cover is axially supported on the
second component, is screwed to the fitted bolt by means of a
thread, and rotatably supports the second clamping bolts.
6. The fitted bolt connection of claim 1, wherein the fitted bolt
forms a collar for axial support on the second component.
7. The fitted bolt connection of claim 1, wherein the clamping
bolts are each engaged with the associated cone segment by means of
a threaded section.
8. The fitted bolt connection of claim 1, wherein the cone segments
have a cylindrical outer wall portion and a conical inner wall
portion.
9. A fitted bolt connection comprising: a fitted bolt having a
first conical surface for arrangement in a hole in a first
component, three or more separate first cone segments each for
arrangement between the first conical surface of the fitted bolt
and an inner peripheral wall of the hole in the first component,
and first clamping bolts each engaged with one of the first cone
segments, respectively, for individually clamping the first cone
segments between the first conical surface of the fitted bolt and
the inner peripheral wall of the hole independently of one another,
a first cap for axial support on the first component, which first
cap engages with the first fitted bolt by means of a thread and has
a tool attachment for screwing the first cap against the fitted
bolt, wherein the first clamping bolts for the first cone segments
are each rotatably received by an end portion on the first cap and
axially fixed on the first cap by said portion, said fitted bolt
having a second conical surface for arrangement in a hole of a
second component, which second conical surface has a set angle
opposing the first conical surface and relative to the longitudinal
axis of the fitted bolt, second cone segments each for arrangement
between the second conical surface and an inner peripheral wall of
the second hole by means of second clamping bolts, and a second cap
configured to be axially supported on the second component, which
is screwed to the fitted bolt by means of a thread and rotatably
supports the second clamping bolts.
10. The fitted bolt connection of claim 9, wherein an inside
projection having an external thread is provided on the first cap,
which projection engages with a recess having an internal thread on
the fitted bolt.
11. The fitted bolt connection of claim 9, wherein the first and
second clamping bolts for the first and second cone segments have a
head having a tool attachment on the outside of the corresponding
first or second cap and a collar on the inside of the corresponding
first or second cap, the diameter of the head and/or collar being
larger than the diameter of an associated hole on the corresponding
first or second cap.
12. The fitted bolt connection of claim 9, wherein the first and
second clamping bolts are respectively engaged with the associated
first and second cone segment by means of a threaded section.
13. The fitted bolt connection of claim 9, wherein the first and
second cone segments have a cylindrical outer wall portion and a
conical inner wall portion.
14. The fitted bolt connection of claim 1, wherein the fitted bolt
forms a collar for axial support on the second component, the
clamping bolts for the cone segments are passed from the side of
the collar through to the fitted bolt, are supported by a head on
the fitted bolt and are in threaded engagement with the cone
segments.
15. The fitted bolt connection of claim 14, wherein a central
clamping member is provided for axially clamping the fitted bolt to
the first component.
16. The fitted bolt connection of claim 14, wherein the fitted bolt
forms a cylindrical fitting portion fitting precisely to the inner
diameter of a hole of the second component.
17. The fitted bolt connection of claim 14, wherein the clamping
bolts are each engaged with the associated cone segment by means of
a threaded section.
18. The fitted bolt connection of claim 14, wherein the cone
segments have a cylindrical outer wall portion and a conical inner
wall portion.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority under 35 USC .sctn. 119 to
German Patent Application No. DE 10 2019 118 453.3, filed on Jul.
8, 2019, the contents of which are incorporated herein by
reference.
FIELD OF THE INVENTION
[0002] The invention relates to a fitted bolt connection for
connecting a first component to at least one second component.
Fitted screws are usually used for this purpose, in which the shaft
diameter is designed with a snug fit in the holes to be matched in
the components to be interconnected in order to secure the
position.
BACKGROUND
[0003] As far as possible, the holes to be matched on the
components to be connected are drilled and reamed together so that
they are exactly aligned with one another. However, this type of
production together is not always possible. If the holes to be
matched are made independently of one another, for example using a
drill jig or using the corresponding coordinates, there are often
slight deviations, especially with larger components, so that the
holes are no longer exactly aligned with one another. In such a
case, the fitted bolt only abuts a few points or even none at all.
Furthermore, the holes to be matched to one another can have a
slightly different diameter. Such a deviation cannot be compensated
for with a conventional fitted bolt.
[0004] Remedial measures are often very complex in these cases. One
possibility, for example, is to rework the corresponding holes, if
this is at all possible. Often, fitted bolts cooled in liquid
nitrogen are used, which shrink in diameter as a result and, after
rapid insertion into the holes, heat up again and thus expand. This
will cause the fitted bolt to become wedged in the holes to be
matched. However, loosening the fitted bolt connection without
destroying the fitted bolt connection becomes impossible. This
procedure also requires a high degree of experience and equipment
and therefore it is not readily available at places of work away
from the workshop.
[0005] A further remedial measure is known from EP 0 816 703 A. It
proposes making the fitted bolt connections by means of a conical
screw connection, in which a conical inner bolt is axially clamped
in a clamping bush having a correspondingly contoured conical
through opening. If holes are not exactly aligned or holes have an
unequal diameter, a fitted bolt connection is obtained by plastic
deformation of the clamping sleeve. Plastic material deformations
are generally undesirable or even unfeasible during assembly.
Loosening the fitted bolt connection known from EP 0 816 703 A2 is
generally not possible after plastic deformation without destroying
the connection.
SUMMARY
[0006] Against this background, the invention is based on the
object of creating an axially clampable and releasable fitted bolt
connection for interconnecting at least two components that is
capable of compensating for, in particular, misalignments of the
holes to be matched in the two components to be connected at least
to a certain extent.
[0007] This object is achieved by a fitted bolt connection. A
fitted bolt connection according to the invention comprises a
fitted bolt having a conical surface for arrangement in a hole in a
first component, three or more separate cone segments each for
arrangement between the conical surface of the fitted bolt and an
inner peripheral wall of the hole in the first component, and
clamping bolts each associated with the cone segments, by means of
which the cone segments, independently of one another, can each be
individually clamped between the conical surface of the fitted bolt
and the inner peripheral wall of the hole.
[0008] The invention is based on the idea of axially positioning
individual conical segments in their position in such a way that
the conical segments are always pushed against the surrounding hole
as well as against the fitted bolt, as a result of which the
function of a fitted bolt connection is ensured over the
circumference of the hole in question. This makes it possible to
interconnect both non-aligned holes and holes of different
diameters as a reliable fitted bolt connection. Loosening and
reassembly of the fitted bolt connection is possible at any time.
The operation can be carried out using simple assembly tools, which
means that corrective measures can also be carried out at remote
places of work.
[0009] Advantageous embodiments of the invention form the subject
matter of further claims.
[0010] In a first variant of the embodiment, the fitted bolt
connection further comprises a cap for axial support on the first
component, which cap engages with the fitted bolt by means of a
thread and has a tool attachment for screwing the cap against the
fitted bolt. The clamping bolts for the cone segments are each
rotatably received by an end portion on the cap and axially fixed
on the cap by said end portion. The preloading force of the fitted
bolt can be adjusted by means of screwing the cap, while the cone
segments are brought into a position by means of the clamping bolt
so that they each wedge between the conical surface of the fitted
bolt and the inner peripheral wall of the hole. This can mean that
the individual cone segments have to be inserted at different
depths into the gap formed between the fitted bolt and the inner
peripheral wall.
[0011] The position of the clamping bolts on the cap does not
change their position when the cone segments are clamped, which
means that a uniform external appearance is obtained in the
assembled state and the ends of the clamping bolts do not protrude
to different extents beyond the cap. A person skilled in the art
coordinates the tightening torques for the cap and for the clamping
bolts in such a way that a sufficient compressive force is
guaranteed between the components to be clamped.
[0012] In order to move the cone segments, the clamping bolts
preferably engage with the associated cone segment by means of a
thread.
[0013] In order to screw the cap to the fitted bolt, an inside
projection having an external thread can be provided on the cap in
a further variant of the embodiment, which projection engages with
a recess having an internal thread on the fitted bolt. The
projection can be formed integrally with the cap or can be
specially attached to the cap. Alternatively, it is possible to
provide the internal thread on the cap and to screw it to an outer
thread portion on the fitted bolt. However, the first-mentioned
variant offers the advantage of an externally closed
appearance.
[0014] According to a further advantageous embodiment of the
invention, the clamping bolts for the cone segments have a head
having a tool attachment on the outside of the cap and a collar on
the inside of the cap. The diameter of the head and collar is
larger than the diameter of the associated hole on the cap, in each
case. The compressive force applied to each cone segment is
supported against the inside of the cap by means of the collar,
while the head makes an external operation possible and prevents
the clamping bolts from being able to fall out of the cap during
assembly. However, the diameter of the head can also be designed
smaller than the associated hole on the cap and can be operated,
for example, by means of a slot or hexagon socket. In this case, a
guarantee that it will not fall out is not given.
[0015] The compensation principle explained above can be used
individually at least for one of the holes to be matched to
another, but optionally also for the two holes to be matched.
[0016] In a variant of the embodiment for two through-holes to be
matched to one another, the fitted bolt can form a second conical
surface for arrangement in a hole of a second component, which has
a set angle opposing the first conical surface relative to the
longitudinal axis of the fitted bolt. Second cone segments having
second clamping bolts are arranged between the second conical
surface and an inner peripheral wall of the second hole.
Furthermore, a second cap corresponding to the first cap is
provided, which second cap is supported axially on the second
component, is screwed to the fitted bolt by means of a thread, and
rotatably supports the second clamping bolts. During assembly, the
fitted bolt can first be fixed in one of the appropriate holes
using one of the caps having the associated clamping bolts and cone
segments. Then the further cap having the associated further
clamping bolts and cone segments is assembled from the opposite
side of the component pairing. The compensation for any
misalignments or deviations in diameter is divided into two points
here, as a result of which larger deviations can be compensated for
rather than if there is only a conical surface on the fitted
bolt.
[0017] In a further variant of the embodiment, one of the caps is
replaced by a collar formed on the fitted bolt for axial support.
Accordingly, during assembly, the fitted bolt having the collar is
first pushed into the holes to be matched. Then the cap having the
clamping bolts and cone segments is assembled from the opposite
side. This variant is suitable, for example, for applications in
which a flange made of fiber composite material is intended to be
connected to a metal flange. In this case, the collar is supported
on the flange made of fiber composite material. A load on the inner
peripheral wall of the hole in the fiber composite material due to
the cone segments is avoided in this way.
[0018] Optionally, the fitted bolt can be formed in this case
having a cylindrical fitting portion which fits precisely to the
inner diameter of the through-hole of the second component, for
example the aforementioned flange made of fiber composite
material.
[0019] In a further variant of the embodiment, the fitted bolt
forms a collar for axial support on the second component, while the
clamping bolts for the cone segments are passed through the fitted
bolt from the side of the collar, are supported by a head on the
fitted bolt and are in threaded engagement with the cone segments.
The fitted bolt can be clamped axially to the first component by
means of a central clamping member. This variant allows one-sided
assembly, for example if the hole in the first component is
designed as a blind hole.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The invention will be explained in more detail below with
reference to embodiments shown in the drawings, in which:
[0021] FIG. 1 shows a longitudinal sectional view of a first
embodiment of a fitted bolt connection according to the
invention,
[0022] FIG. 2 shows a view of a cap of the fitted bolt connection
according to FIG. 1,
[0023] FIG. 3 shows a spatial view of a cone segment of the fitted
bolt connection,
[0024] FIG. 4 shows a longitudinal sectional view of a second
embodiment of a fitted bolt connection according to the
invention,
[0025] FIG. 5 shows a view of a cap of the fitted bolt connection
according to FIG. 4,
[0026] FIG. 6 shows a longitudinal sectional view of a third
embodiment of a fitted bolt connection according to the invention,
and
[0027] FIG. 7 shows a view of the outer end face of the fitted bolt
connection according to FIG. 6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0028] The first embodiment shown in FIGS. 1 to 3 shows a fitted
bolt connection for connecting a first component 1 to a second
component 2. The two components 1 and 2 have two holes 3 and 4 to
be matched to one another, which, in the embodiment shown, are not
exactly aligned with one another, but are offset from one another
by a small offset. In addition, the holes 3 and 4 can differ
slightly from one another in terms of their inner diameter. Instead
of a one-section connection, the fitted bolt connection explained
in more detail below can also be used in multi-section
connections.
[0029] The holes 3 and 4 are designed as through-holes and are each
accessible from the outside. To compensate for the misalignment
shown, the fitted bolt connection first has a fitted bolt 5 which
forms a first conical surface 6 for arrangement in the hole 3 in
the first component 1 and a second conical surface 7 for
arrangement in the hole 4 in the second component 2. The two
conical surfaces 6 and 7 have opposing set angles relative to the
longitudinal axis A of the fitted bolt 5. As will be explained in
more detail below, however, embodiments are also possible in which
only a first conical surface 6 is present on the fitted bolt 5.
[0030] The maximum outer diameter of the conical surfaces 6 and 7
is selected such that an annular gap is formed between these and
the corresponding inner peripheral walls 8 and 9 of the holes 3 and
4.
[0031] The fitted bolt connection further comprises at least three,
and in the present example six, cone segments 10 and 11 each for
arrangement between the conical surface 6 or 7 of the fitted bolt 5
and the radially opposite inner peripheral wall 8 or 9 of the
associated hole 3 or 4, respectively. The cone segments 10 and 11,
one of which is shown in more detail in FIG. 3, are each inserted
into the axially tapering annular gap. They are mutually spaced
apart in the circumferential direction and do not touch each
other.
[0032] As FIG. 3 shows, each of the cone segments 10 or 11 has a
cylindrical outer wall portion 12 for abutting the corresponding
inner peripheral wall 8 or 9, and a conical inner wall portion 13
for abutting the corresponding conical surface 6 or 7 of the fitted
bolt 5.
[0033] Furthermore, each of the cone segments 10 or 11 has a
radially inwardly directed wall portion 14, angled relative to the
outer wall portion 12, on which a threaded hole 15 is provided, the
axis of which preferably runs in parallel with the longitudinal
axis A of the fitted bolt 5.
[0034] A clamping bolt 16 or 17 is associated with the cone
segments 10 or 11. By means of the clamping bolts 16 or 17, cone
segments 10 or 11, independently of one another, can each be
individually clamped between the conical surface 6 or 7 of the
fitted bolt 5 and the corresponding inner peripheral wall 8 or 9 of
the hole 3 or 4.
[0035] For this purpose, the clamping bolts 16 and 17 each engage
with the threaded holes 15 on the wall portions 14 of the cone
segments 10 or 11. By turning the clamping bolts 16 or 17, the cone
segments 10 or 11 can be displaced more or less deeply into the
annular portion between the conical surface 6 or 7 on the fitted
bolt 5 and the corresponding inner peripheral wall 8 or 9. This
makes it possible to compensate for different radial gap widths of
the annular gap.
[0036] In the first embodiment, the clamping bolts 16 and 17 are
each axially supported on a cap 18 and 19.
[0037] FIG. 1 shows a first cap 18 for axial support on the first
component 1, which cap engages with the fitted bolt 5 by means of a
thread 20. Furthermore, the first cap 18 has a tool attachment 21
for screwing the first cap 18 against the fitted bolt 5. In the
embodiment shown, the first cap 18 has a hexagonal shape for this
purpose. However, other tool attachments 21 are also possible on
the first cap 18.
[0038] In the present case, the thread 20 on the first cap 18 is
designed, for example, as an external thread on a projection 23
provided on the inside 22 facing the fitted bolt 5. The projection
23 can be formed integrally with the first cap 18 or can be
specially attached to it. On the fitted bolt 5 there is a
corresponding internal thread 24 by means of which the projection
23 engages with its external thread. By changing the screw-in
depth, the fitted bolt 5 can be positioned axially in the holes 3
and 4. In addition, the preloading force required for connecting
the first and second components 1 and 2 is applied by screwing the
two caps 18 or 19 against the fitted bolt 5, as will be explained
in more detail below.
[0039] The first cap 18 has further holes 25 for mounting the first
clamping bolts 16 for the first cone segments 10. The first
clamping bolts 16 are each rotatably received by an end portion 26
on the first cap 18 and axially fixed on the first cap 18 by said
end portion 26.
[0040] In the first embodiment shown, the first clamping bolts 16
have, without limitation, a head 27 having a tool attachment 28 on
the outside of the cap and a collar 29 on the inside of the cap. A
shaft portion 30 having an externally threaded portion 31 extends
from the collar 29 into the threaded opening 15 of the first cone
segment 10.
[0041] At least the collar 29, but preferably both the collar 29
and the head 27, have a diameter which is larger than the diameter
of the associated hole 25 on the first cap 18.
[0042] The force with which the associated cone segment 10 is
pressed into the annular gap is axially supported by means of the
collar 29. The head 27 is used to clamp and loosen the associated
cone segment 10 from the outside.
[0043] In the first embodiment, as already mentioned, two conical
surfaces 6 and 7 are provided on the fitted bolt 5 for each of the
holes 3 and 4. The components for exactly fixing the first conical
surface 6 in the associated hole 3 on the first component 1 were
explained above. The second conical surface 7 can be fixed in the
hole 4 of the second component 2 using analog components.
[0044] Accordingly, in FIG. 1, second cone segments 11 can be seen
between the second conical surface 7 and an inner peripheral wall 9
of the second hole 4 by means of second clamping bolts 17, a second
cap 19 corresponding to the first cap 18 being axially supported on
the second component 2. This second cap 19 is in turn screwed to
the fitted bolt 5 by means of a thread 20, which, as already
described for the first clamping bolt 16, rotatably supports the
second clamping bolt 17.
[0045] When assembling the fitted bolt connection according to the
first embodiment, the cone segments 10 and 11 on the first and
second caps 18 and 19, respectively, are first brought into a
retracted position by actuating the associated clamping bolts 16
and 17, by their wall portions 14 being moved in the direction of
the inside of the cap 22 in each case.
[0046] The fitted bolt 5 is then inserted into the holes 3 and 4 to
be matched in the first and second components 1 and 2. The first
cap 18 together with its first cone segments 10 and first clamping
bolts 16 is then inserted into the hole 3 of the first component 1,
it being possible for the ends of the cone segments 10 already in
loose engagement with the annular gap to reach between the first
conical surface 6 and the inner wall portion 8 of the hole 3.
[0047] The longitudinal axis A of the fitted bolt 5 is brought as
close as possible to the center between the longitudinal central
axes of the holes 3 and 4, which are somewhat offset from one
another. The fitted bolt 5 is then fixed in this position by
screwing the first cap 18 against the fitted bolt 5 and tightening
the first clamping bolts 16 in order to radially fix the desired
position of the fitted bolt 5 by moving the first cone segments 10
into the annular gap.
[0048] In a modification of this procedure, the fitted bolt 5 can
initially also be loosely mounted on the first cap 18 and inserted
into the hole 3 together with said cap.
[0049] After the longitudinal axis A of the fitted bolt 5 has been
fixed, the second cap 19 together with its second cone segments 11
and second clamping bolts 17 is mounted from the opposite side. The
second cone segments 11 come into loose engagement with the annular
gap formed between the second conical surface 7 of the fitted bolt
and the inner peripheral wall 9 of the hole 4 of the second
component 2.
[0050] Next, the second cap 19 is tightened against the fitted bolt
5, as a result of which the actual preloading force of the fitted
bolt connection is generated in order to press the first and second
components 1 and 2 against one another.
[0051] Finally, the second clamping bolts 17 are operated in order
to press the second cone segments 11 into contact in the annular
gap between the second conical surface 7 and the inner peripheral
wall 9 of the hole 4 such that they are supported radially against
the inner peripheral wall 9 by their outer wall portion 12 and they
are supported radially against the second conical surface 7 of the
fitted bolt 5 by their conical inner wall portion 13. In this way,
a residual offset existing between the longitudinal axis A of the
fitted bolt 5 and the longitudinal central axis of the hole 4 of
the second component 2 and any existing difference in diameter
between the holes 3 and 4 to be matched are compensated for.
[0052] By means of the clamping bolts 16 and 17, the pressure force
between the first and second components 1 and 2 applied by means of
the caps 18 and 19 is somewhat reduced, which must be taken into
account when designing the fitted bolt connection.
[0053] After assembly, a corresponding fine adjustment of the
tightening torques of all clamping bolts 16 and 17 and caps 18 and
19 can be carried out.
[0054] By screwing back the first and second cone segments 10 and
11 and then unscrewing the first and second caps 18 and 19 from the
fitted bolt 5, the fitted bolt connection can be easily released
and, if necessary, re-installed. The assembly and disassembly can
be done with conventional torque wrenches. No special tools are
required for this, and therefore assembly and disassembly are
possible even at remote places of work outside the workshop.
[0055] The invention thus makes it possible to use non-aligned
holes and/or holes with slightly different inner diameters for a
fitted bolt connection.
[0056] The fitted bolt connections can be used for all industrial
sectors and can be made of different materials or coated with
different materials.
[0057] These are preferably used to connect large flanges, but can
also be used for other single- and multi-section connections.
[0058] Numerous modifications of the first embodiment shown are
possible.
[0059] A second embodiment is shown in FIGS. 4 and 5, in which a
deviation is only compensated for by means of a hole.
[0060] The fitted bolt connection of the second embodiment in turn
comprises a fitted bolt 5' having a conical surface 6' for
arrangement in a hole 3 of a first component 1. As in the first
embodiment, three or more separate cone segments 10' are also
provided here each for arrangement between the conical surface 6'
of the fitted bolt 5' and an inner peripheral wall 8 of the hole 3
of the first component 1. The cone segments 10' are each associated
with a clamping bolt 16', by means of which the cone segments 10',
independently of one another, can be individually clamped between
the conical surface 6' of the fitted bolt 5' and the inner
circumferential wall 8 of the hole 3. Furthermore, the fitted bolt
connection of the second embodiment has a cap 18' which is screwed
to the fitted bolt 5' and rotatably supports the clamping bolt
16.
[0061] The cone segments 10', the clamping bolts 16' and the cap
18' can be designed like the corresponding components of the first
embodiment, and therefore reference is made to the above statements
in this regard.
[0062] In contrast to the first embodiment, the fitted bolt 5' of
the second embodiment forms a collar 32' for axial support on the
second component 2.
[0063] In addition, a cylindrical fitting portion 33' can be
provided on the fitted bolt 5' of the second embodiment, which
fitting portion is designed to fit exactly the inner diameter of
the hole 4 to be matched in the second component 2. In particular,
a transition fit can be provided between the fitting portion 33'
and the inner peripheral wall 9 of the hole 4 in the second
component 2, which fit is particularly suitable for installation in
a second component 2 made of fiber composite material. This avoids
radial loading of the inner peripheral wall 9 of the second
component 2. In particular, the radial pressure stress due to the
cone segments 11 is eliminated as in the first embodiment. This is
particularly advantageous for sensitive materials.
[0064] When assembling a fitted bolt connection according to the
second embodiment, the fitted bolt 5' is first pushed into the
holes 3 and 4 to be matched from the side of the second component 2
until its collar 32' comes into contact with the second component
2.
[0065] The cap 18' is then mounted on the fitted bolt 5' with the
cone segments 10' withdrawn. In this case, the cone segments 10'
initially come loosely into the annular gap formed between the
conical surface 6' and the inner circumferential wall 8 of the hole
3 in the first component 1.
[0066] Subsequently, the cap 18' is screwed against the fitted bolt
5' until a desired preload force level is reached approximately.
Finally, the clamping bolts 16' are actuated until the cone
segments 10' each become wedged between the conical surface 6' of
the fitted bolt 5' and the inner peripheral wall 8 of the hole 3.
Finally, the tightening torques can be finely adjusted.
[0067] Loosening and reusing the fitted connection is also possible
here in a non-destructive manner by the cone segments 10' being
moved out of the annular gap by means of the clamping bolts 16' and
the cap 18' being loosened.
[0068] FIGS. 6 and 7 show a third embodiment, in which, as in the
second embodiment, a deviation is only compensated for by means of
a hole. In contrast to the second embodiment, assembly is possible
from only one side of the fitted bolt connection. This can be of
advantage, for example, in confined spaces or if the first
component is designed accordingly. It is suitable, for example, for
applications in which there is only a blind hole in the first
component instead of a through opening.
[0069] The fitted bolt connection of the third embodiment has a
fitted bolt 5'' having a conical surface 6'' for arrangement in a
hole 3 in a first component 1. As can be seen in FIG. 6, the first
hole 3 is designed here as a blind hole, while the second hole 4 is
a through opening into which the fitted bolt 5'' having its
cylindrical fitting portion 31'' can be inserted with a precise
fit. The inner peripheral wall 9 of the hole 4 of the second
component 2 has, for example, a transition fit to the fitting
portion 31''.
[0070] At least three, for example six, separate cone segments 10''
are arranged between the conical surface 6'' of the fitted bolt 5''
and an inner circumferential wall 8 of the hole 3 in the first
component 1, each of which is associated with a clamping bolt 16''.
By means of the clamping bolts 16'', the cone segments 10'',
independently of one another, can be individually clamped between
the conical surface 6'' of the fitted bolt 5'' and the inner
circumferential wall 8 of the hole 3. A separate cap is not
required here.
[0071] The fitted bolt 5'' of the third embodiment forms a collar
32'' for axial support on the second component 2, which in the
present case has a hole 4 designed as a through opening.
[0072] The clamping bolts 16'' for the cone segments 10'' are
passed through the fitted bolt 5'' from the side of the collar
32''. They each have a head 27'', which can be supported, for
example, on an outside end face wall 33'' of the fitted bolt 5''.
The clamping bolts 16'' are each in threaded engagement with one of
the cone segments 10'', it being possible for said cone segments to
be designed as shown in FIG. 3. Preferably, the cone segments 10''
and the clamping bolts 16'' are loosely mounted on the fitted bolt
5'' before the fitted bolt 5'' is inserted into the holes 3 and
4.
[0073] The fitted bolt 5'' can be clamped axially to the first
component 1 by means of a central clamping member 35''. The central
clamping member 35'' can be designed, for example, as a clamping
bolt which is passed from the outside end face wall 33'' of the
fitted bolt 5'' through the fitted bolt 5'' and is screwed to a
corresponding threaded portion 36'' of the first component 1. A
head 37'' is supported on the outside of the clamping member
5''.
[0074] The invention has been explained in detail above with
reference to embodiments and further modifications. The embodiments
and the modifications serve to prove the feasibility of the
invention. Technical individual features which were explained above
in the context of further individual features can also be
implemented independently of said further individual features and
in combination with other individual features, even if this is not
expressly described, as long as this is technically possible. The
invention is therefore expressly not limited to the embodiments
specifically described, but includes all designs defined by the
claims.
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